#include <stdio.h>

int function1();
int function2();
int function3();

int main() {
    function1();
    function2();
    function3();
    return 0;
}

int function1() {
    int a=5,b=7,c=100,d,e,f;
	d=a/b*c;
	e=a*c/b;
	f=c/b*a;
	printf("d=%d , e=%d ,f=%d\n",d,e,f);
	return 0;
}

int function2() {
    int a=5,b=8;
	printf("a++=%d\n",a++);
	printf("a=%d\n",a);
	printf("++b=%d\n",++b);
	printf("b=%d\n",b);
	return 0;
}

int function3() {
    int a=5,b=8,c=8;
	printf("%d,%d,%d,%d\n",a==b&&a==c,a!=b&&a!=c,a>=b&&a>=c,a<=b&&a<=c);
	printf("%d,%d\n",a<=b||a>=c,a==b||b==c);
	printf("%d,%d,%d,%d\n",!(a==b),!(a>=b),!(a>=c),!(a<=b));
	return 0;
}
